Bottle-cap



L S. N. TEVANDER.

BOTTLE CAP.

APPLICATION FILED FEB. 1, 1919.

Patented Mar. 30; 1920.

I u: an

swan runs TEVANDER, or MAYwoon, ILnmoIs.

. BOTTLE-CAP.

. Specification of Letters Patent;

I Patented 30, 1920.

Application filed February 1, 1919. Serial No. 274,409.

To all whom it may concern:

Be it known that I, SWAN N. ,TnvANpER', a citizen'of the United States, and 'a resident of the city of Maywood, county of Cook, and State of-Illinois, have invented a new and useful Improvement in Bottle- Caps,.of which the following is a specification. a

My invention relates to bottle closures such as are used for' making air tight seals and for sanitary and certified milk purposes, and for closures generally of a superior type.

The objects of the invention are to make a cheap cap, one that may be-applied to or:

dinary standard shape bottle nozzles,.that

will be air tight, sanitary, that will stand. high'pressu'res. within the bottle" without loosening the seal, that will meet the requirements for certified milk, that may be used fora temporary 'cap, that may be applied to the bottle withlittle or no danger of breaking the bottle, that will faccommodate itself to the small irregularities in the shape of the nozzle and yet make a tight seal and may be applied to the bottles with simple machinery.

The invention is set forthin the claims.

Reference will be"had to the accompanying drawings in which Figure 1 shows an elevation of a milk bottle nozzle'with my cap applied.".- Fig. 2 is a planor top view of the nozzle with my cap applied. Fig. 3 is a section through the nozzle and cap 85. showing the. cap' previously prepared and placed loosely on the nozzle ready for sealing. Fig. t shows the same view as Fig. 3, but after the cap has been sealed on; Fig- 5 is, aplain section on line '55 of Fig. 4. 40 Figs. 3, 4: and 5, are on a larger scale'than Figs. 1 and 2. Fig. 6 is a view -similar to Fig. 4 showing one side of the bottle no'z ,zle and cap on a larger scale than the other figures. Fig. 7 is an,enlarge d-plan section of a small piece'on line-7- -'Zg of"Fig. 3.

I prefer to mailzze my cap oigj iillin tin or other" suitable me al or material'""and line it on the inside with paper or other yielding or suitable material and make them in the form shown in Fig. 3, wherein 1 indicates the ordinary bottle nozzle and 2 indicates my metal cap lined with paper indicated by 3. The cap thus formed s em-j bossed as shown by 4 in order to stiffen the cap and assist in making a tight .seal over the inside edge 5 of the bottlenozzle; 1

I may but assumes the form of Fig. 6 andis plied in the shape and neatness as at-first,

On the outside skirt or flange of the cap I provide the reentrant rib or crease 6 and terminate the flange or skirt in the inwardly inclined edge 7 1 By suitable simpl'e'tools not here shown I press the cap down tightly on the bottle nozzle at the zone extending from 8 to 9" and while pressure is there applied with a suitable device, I compress or draw up the skirt or flange below 9 thusproducing the crimping as shown in Figs. 4 and 6. Inthis crimping action the metal with its paper lining is forced to adjust itself "as best it compressed tightly. to the outside of 'the nozzle making the rib 10 fit tightly to the nozzle all around the periphery. This rib 10 will accommodate itself to allthe irregu-- larities ordinarily found in the nozzles of bottles and make a tight fit. The flanges in a horizontal plane around the bottle as indicated by11, 12 and 13 produced in the metal by the crimping action when the cap is sealed are so strong to resist expansion and are formed under such pressure against the nozzle that they hold the'ca'p firmly to the bottle even when the bottle nozzle'is straight ,on the outside. The paper lining forms a frictional elastic element between the glass and the metal so that a perfect seal is formed and by friction the cap is 1 held firmly to .the bottle. -Most bottles have a straight or a slight bulging outside that my cap may embrace with more security than the form I have shown in the drawings.

In removing my caps they are pried off with a tool similar to the one in common.

one side of the lever engages-the edge 13.

This distorts the cap and shows that it has beenremoved and it' cannot be again apbut sothat an ordinary observer will notice that ithas been' once removed. I

The cap after removal has had its flanges, 11, l2,-and 13, expandedsuificiently in re; "movingjso that it may be placed on again' by hand sufficiently tight for a cover forthe contents while it is being used.

The caps as applied are-so firmly fixed to" the nozzle that even if a cap is again applied after careful remova and done in a'manner causing the leastdistortion possible one will f readily notice the difierence by a torsional twist of the cap so that the bottle will not be refilledwithout normally being detected.

While I have shown in the drawings only the ordinary milk bottle my caps may be used on fruit jars, jelly and other glasses and cans of various kinds.

The yielding paper lining to the caps will flow slightly into small irregularities in the glass or other surface of the bottle or container which is capped and at all times keep a tight seal. 'hile my cap clamps the periphery of the nozzle tightly it is ,sufiiciently elastic, to take care of variations in expansion to permit the contents to be pasteurized after the cap is sealed on, thus guarding against accidental infection that sometimes takes place with the milk in hottling after it has been pasteurized in bulk as is the present practice.

The paper lming is really a packing ma- .terial and any suitable substitute packing may be used but I prefer to use the paper.

a In some cases with my thin tin I can make a seal required with the tin alone as it is compressed in a manner that the thin tin rib will conform to the glass outline and make a tight seal in itself.

What I claim is 1. A cap having a down-turned paperby the cap and exerts great pressure against the same when the open corrugations are closed by vertical compression.

3. A metal cap for bottles and the like, having a peripheral down-turned, internally paper-faced flange provided with ,shallow annular primarily open-corrugations one 9f which 1s inwardly convex in cross-section, and adapted to fitprlmarily around a bottle nozzle and to be forced inward against it with great force when the corrugations are vertically compressed.

In witness whereof I have hereunto subscribed my name on this 28th day of J anuaiy 1919 in the presence of a. subscribing witness.

SWAN NILS TEVANDER.

' Witness:

LOUIS ALBERTO. 

